BIOL2060 - Lecture 31 - Nov 27, 2013

What is a community and how do we quantify community

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Unformatted text preview: What is a community and how do we quantify community structure? 2.  How do communities change over time? 3. Food chains and top-down vs. bottom-up control 4. What stabilizes communities? 5. What is an ecosystem? 6. How do we measure energy flow through an ecosystem I? 7. How do we measure energy flow through an ecosystem II? 4 2 Food chains and top-down vs. bottom-up control How do we quantify the strength of trophic interactions? Food chains and top-down vs. bottom-up control How do we quantify the strength of trophic interactions? White-footed mice Lyme disease infected ticks Deer Gypsy moths Leaves Acorns (Red oak) can perform addition/removal experiments to determine apex predator, lesser predators, and the importance of each creature 3 it’s not possible to use a food web manipulation to reduce gypsy moth populations and lyme disease at the same time UNLESS… you want to destroy the food web by removing the red oak. Food...
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This document was uploaded on 03/10/2014 for the course BIOL 2060 at University of Guelph.

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